Pete / Dave, Thanks for your response. I'd hoped that you both would be able to provide me with a positive solution, but after I posted the message I researched screens and found that refresh rates could be as low as 60hz but some advertisement displays are running up to 300hz to prevent eye strain. So it really goes against the grain of using my motordrive as the picture that I really want is always between two pictures and Pot Luck isn't in my photographic vocabulary.
Sent using BlackBerry® from Orange -----Original Message----- From: David Beilby <[email protected]> Sender: [email protected] Date: Sat, 29 Oct 2011 17:21:11 To: <[email protected]> Reply-To: [email protected] Subject: Re: Help - Photographing Stagecoach Destination Blinds I agree with what Peter says about it being pot luck. I've tried his approach of taking a 'burst' of pictures and then another factor comes in called Sod's Law! More often than not they ALL end up blank. One other conclusion I've reached is that the probability of it being visible is in inverse proportion to the importance of it to the photograph. If it's an unusual working it's much less likely to come out! Regards, David Beilby On 29 Oct 2011, at 17:00, Peter Relf wrote: > Martin, > > Dot-matrix destination displays are a complete pain for photographers. > > The problem arises because they constantly "refresh", i.e. are not > "on" all the time time, although the persistence of vision that we > have gives the impression that the light coming from them is constant. > > The only way to guarantee that the display will come out in a > photograph is to use a shutter speed of 1/60th of a second or > slower. Unfortunately, that will rule out taking photos of moving > vehicles. If you want/need to photograph buses on the move it will > be "pot luck" whether you fire the shutter at the moment when the > display is "on". What you can do (if your camera is so equipped) is > to take a burst of (say) three shots and at least one of them should > be OK. > > At least we don't (yet) have this problem in London with TfL- > tendered routes ! > > Peter R. > > > ----- Original Message ----- > From: MARTIN BRAY > To: [email protected] > Sent: Saturday, October 29, 2011 4:39 PM > Subject: Help - Photographing Stagecoach Destination Blinds > > I seem unable to consistently photograph Stagecoach vehicles showing > their destination blinds, as a proportion of my pictures are showing > black screens, normally the pictures that are of real interest. I > seem to remember sometime ago Barrie suggesting that I need to use a > slow shutter speed because of screen refreshing. I have taken a look > at McKenna Brothers website of LED and DOT matrix electronic > destination blinds but cannot find any reference to photography. > lol. Can anyone explain the technicalties of this. Ta. > > http://mckennabrothers.co.uk/mckenna/ > > Regards > > Martin Bray, Swansea, UK > > Stagecoach Cymru... http://www.stagecoach-cymru.co.uk > > Welcome to Margam Depot...http://www.margam-depot.co.uk > > > -- > You received this message because you are subscribed to the Google > Groups "Welsh Bus Photographs" group. > To post to this group, send email to [email protected] > . > To unsubscribe from this group, send email to > [email protected] > . > For more options, visit this group at > http://groups.google.com/group/welsh-bus-photographs?hl=en > . > > -- > You received this message because you are subscribed to the Google > Groups "Welsh Bus Photographs" group. > To post to this group, send email to [email protected] > . > To unsubscribe from this group, send email to > [email protected] > . > For more options, visit this group at > http://groups.google.com/group/welsh-bus-photographs?hl=en > . -- You received this message because you are subscribed to the Google Groups "Welsh Bus Photographs" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/welsh-bus-photographs?hl=en. -- You received this message because you are subscribed to the Google Groups "Welsh Bus Photographs" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/welsh-bus-photographs?hl=en.
